Quantitative Aptitude - Arithmetic Ability Questions

The variance of a set of data is 121. Then the standard deviation of the data is

What is the distance between the points (4,­-8) and (­-2,0)?

What is the equation of the line if its slope is 4/3 and it passes through the point (-7 , 2)?

What is the simplified value of 31253 + 4253 + 36753

Select the odd word/letters/number/number pair from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, select the odd letter/letters from the given alternatives.

In a triangle the length of the side opposite the angle which measures 45° is 8 cm, what is the length of the side opposite to the angle which measures 90°?